Door control for electric pull sockets



Patented Apr. 21, 1942 DOOR CONTROL FOR ELECTRIC PULL SOCKETS Andrew S.Kinney, Redwood Falls, Minn.

Application April 4, 1940, Serial No. 327,906

(Cl. 20D-54) 2 Claims.

This invention relates to a door control for electric pull sockets.

It is primarily aimed to provide such a device as will effect thelighting of a lamp when a door is opened, with the lamp remainingilluminated after the door is closed and which will cause extinction ofthe lamp when the door is again opened as in the act of leaving the roomor location where the lamp is located. Such a device has particular use,where a lamp is to be illuminated upon approach into a room and whileremaining in a room and is to be extinguished upon leaving such room.Examples of such a room are toilets, basements, garages, and attics.

The more specific objects and advantages will become apparent from aconsideration of the description following taken in connection withaccompanying drawing illustrating an operative embodiment.

In said drawing:

Figure 1 is a fragmentary view in horizontal section through a room inconnection with which my improvements are shown;

Figure 2 is a vertical sectional view taken on the line 2-2 of Figure 1;

Figure 3 is a horizontal section of a fragment of a room showing amodied form of my improvements, and

Figure 4 is a vertical section taken on the line 4--4 of Figure 3.

Referring specifically to the drawing and first to the form shown inFigure 2, a conventional room is suggested at I0 having a door I I,adapted to swing outwardly on a vertical axis I2. An electric lamp I3 isoperatively wired within the room III and it is operated by a pull chainI4 and conventional switch mechanism, which lights and extinguishes thelamp I3 through alternate pulls on the chain I4.

A bracket I5 is suitably fastened as at I6 to wall structure within theroom` I0 and an angular control lever Il is pivoted on a vertical axisat III to the bracket I5. A coil spring I9 is fastened to one arm oflever I1 and to the bracket I5 while another coil spring 20 is fastenedto the v other arm of the lever I'I and to an eyelet or the like 2| onthe inside of the door I I. Such springs I9 and 20 maintain the anglelever II in the predetermined position shown by the full lines in thedrawing.

A draw element in the form of a cord or the like 22 is fastened to oneend of one of the arms of lever I1 and at the other end to the pullchain I4, such draw element being guided over a pulley 23 plvoted at 24on the bracket I5.

Presuming lamp I3 to be extinct, upon door II being opened by pullingoutwardly thereon, the parts will be moved from the full line to thedotted line position in Figure 1, spring 2D being tensioned and rockingthe lever I1, tensioning eil) the spring I9, pulling the draw member 22and the pull chain I4, thereby causing lamp I3 to illuminate. Upon thedoor II being closed, the springs I9 and 20 restore the lever I'I to itsnormal position and providing sufficient slack in the draw element 22 toenable the pull chain I4 to return to its original position for asucceeding operation. It will be realized, that the interior of the roomIIJ will thus be lighted and has been lighted through the act of theperson opening door II and entering the room. Upon such person leavingthe room, he will open the door Il, thus again moving the parts to thedotted line position and pulling the chain I4, so that upon closing thedoor II, the lamp I3 will be extinguished and the chain I4 moved toposition for the succeeding operation.

In Figures 3 and 4, the invention has been shown in connection with a.door Il' which is adapted to swing inwardly in opening it, from avertical axis at I2. In connection with such a structure, the bracket I5is fastened onto the doorframe as shown, In addition, a bracket 25 isfastened as at 26 to the door I I and the spring 20 instead of beingfastened to the eyelet 2l is fastened to said bracket 25. Otherwise, thestructure corresponds to that of the first form and operates in the samemanner and performs the same function as the first form of the inventionthrough the opening and closing of the door Il.

Various changes may be resorted to provided they fall within the spiritand scope of the invention.

I claim as my invention:

l. A door operable control for an electric pull socket comprising amounting bracket, a lever pivoted to said bracket, a spring connected tothe lever and to the bracket, a, spring connected to the lever on theother side of the pivot from the first mentioned spring and adapted forconnection to the door, a draw means extending from the lever forconnection to the electric pull socket, a guide means over which thedraw member passes, said guide means being mounted by said bracket, saidlever being of L-shape, and the bracket having an arm to which the leveris pivoted.

2. In combination, a closure, and L-shaped bracket secured by its faceportion to a supporting structure, a bell-crank pivotally secured at itsheel portion to the outstanding portion of the L-shaped bracket, atension spring between an intermediate portion of one leg of thebell-crank and the heel portion of the L-shaped bracket, a switch, aconnection between one end of the bellcrank and the switch and aconnection between the other end of the bell-crank and the closure.

ANDREW S. KINNEY.

